Renovation & extension certification in NSW
CertifiBuild certifies alterations, additions, and extensions to existing residential dwellings across New South Wales. We issue Construction Certificates (CC) and Complying Development Certificates (CDC), and carry out all required critical-stage site inspections to ensure your renovated home meets BCA standards and statutory council requirements.
What is covered under our certification:
Ground and upper-floor additions
Certification for second-storey extensions, expanded living spaces, and additional bedrooms.
Internal alterations and wall removals
Compliance assessments for structural wall relocations, open-plan conversions, and reconfigurations.
Alfresco areas, decks, and verandahs
Fast CDC and CC approvals for covered outdoor entertainment spaces connected to the main dwelling.
Structural conversions and garage revamps
Statutory checks and mandatory inspections for converted habitable rooms and utility upgrades.
Reliable approvals for existing dwellings
Extending an existing structure requires careful integration with original plumbing, fire safety separation, and structural loads. Our accredited certifiers deliver straightforward reviews so your builder can start with confidence.
CDC & CC pathways
Clear advice on whether your plans qualify for Complying Development or need a Construction Certificate.
Critical-stage inspections
Timely site visits at every mandatory stage so you can proceed with building work without delays.
Ready to start your alteration?
Lodgement within 48 hours of complete plans
Why renovation certification protects your home
Structural renovations and additions in NSW require formal private certification to safeguard your investment, maintain legal building compliance, and protect future resale equity.
Council can order costly rework or even demolition of uncertified structural changes.
Uncertified extensions can void home insurance and complicate claims after damage.
Certification protects the homeowner at resale by proving the work was compliant.
Planning structural changes or an extension in NSW?
Get a renovation quoteHow certification works
From initial plan review through mandatory on-site inspections to your final Occupation Certificate, we keep your build compliant and moving forward.
Plan review & approval
Submit your architectural and engineering drawings. We assess compliance with the BCA and NSW planning codes to issue your Construction Certificate (CC) or Complying Development Certificate (CDC).
Appoint your certifier
Formally appoint CertifiBuild as your Principal Certifier (PC) before work starts on site. We lodge the required statutory notices with your local NSW council.
Critical stage inspections
Our accredited certifiers visit your site at required construction milestones, including piers, slab prep, steel reinforcement, timber framing, and wet area waterproofing.
Final sign-off & OC
Once construction is complete and all trade compliance certificates are collected, we conduct the final inspection and issue your formal Occupation Certificate (OC).
Ready to start your project or need advice?
Send us your plans for a prompt certification quote and guidance on CDC vs DA pathway in NSW.
Ready to certify your renovation project?
Get clear guidance, fast approval pathways, and compliant inspections for your home alterations, additions, or granny flat anywhere in NSW.